@article{fdi:010075585,
  title = {{D}isentangling the processes driving tree community assembly in a tropical biodiversity hotspot ({N}ew {C}aledonia)},
  author = {{P}outeau, {R}obin and {M}unoz, {F}. and {B}irnbaum, {P}.},
  editor = {},
  language = {{ENG}},
  abstract = {{A}im {U}nderstanding the drivers of community diversity and composition is a major question in ecology, which is of particular significance for the conservation of narrowly distributed taxa facing habitat alteration. {I}n this study, we examined three ecological processes (environmental and biotic filtering, and dispersal limitation) hypothesized to drive community assembly in the island biodiversity hotspot of {N}ew {C}aledonia, and whether the relative importance of these processes changes along environmental gradients. {M}ethods {F}irst, we assessed environmental filtering by stacking binary presence/absence species distribution models generated for 678 tree species from c. 40,000 occurrences. {S}econd, we acknowledged the influence of dispersal limitation by applying a buffer around each occurrence. {T}hird, we modelled a local hierarchy of performances by ranking species in decreasing order of their predicted habitat suitability, up to the predicted local species richness. {P}redictions of stacked species distribution models ({S}-{SDM}s) accounting for different combinations of the filtering processes were compared with the composition of 12 forest plots. {R}esults {T}he three filters appear to be important driving forces. {A}ccounting for environmental filtering provided fairly accurate assemblage predictions but species richness was overestimated. {C}onsidering dispersal limitation increased assemblage specificity (the proportion of correctly predicted absences) while considering differences in local performances increased assemblage sensitivity (the proportion of correctly predicted presences). {T}he predictive ability of all {S}-{SDM}s decreased with elevation, which suggests that unpredictable stochastic processes influenced biodiversity dynamics in more productive mountain habitats. {M}ain conclusions {N}ew {C}aledonian tree communities appear to be similar to those of other tropical regions in their structuring processes (important role of dispersal and biotic filtering, increasing role of neutral processes with productivity). {O}ur findings stress the potential of using {S}-{SDM}s to understand and predict current and future biodiversity patterns.},
  keywords = {abiotic niche ; alpha-diversity ; community assembly ; community ; saturation ; dispersal limitation ; spatial ecology ; stacked species ; distribution model ; tropical rain forest ; {NOUVELLE} {CALEDONIE}},
  booktitle = {},
  journal = {{J}ournal of {B}iogeography},
  volume = {46},
  numero = {4},
  pages = {796--806},
  ISSN = {0305-0270},
  year = {2019},
  DOI = {10.1111/jbi.13535},
  URL = {https://www.documentation.ird.fr/hor/fdi:010075585},
}